List of Articles Open Access Article Abstract Page Full-Text 1 - Designing a close-loop green supply chain with consideration of demand forecasting for 3d printer products Farideh Etemadifard Amirreza Ahmadi Keshazarz Fereshte Khalaj Open Access Article Abstract Page Full-Text 2 - Identifying and ranking the effective factors of the supply chain and the role of the balance of the production line in it by using a combined decision-making approach with multiple criteria. Omid Aghamoradi Bisetooni Mehrdad Nikbakht Mohammad Reza Feylizadeh Arash Shahin Open Access Article Abstract Page Full-Text 3 - Prioritizing appropriate strategies to deal with key risks in the design projects of oil, gas, and petrochemical units Behrooz Liravinia Mahmoud Modiri Kiamars Fathi Abdul-Rahim Rahimi